Patents by Inventor Serge Lionel Pierfederici

Serge Lionel Pierfederici has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Active filtering device for a power supply
    Patent number: 8742734
    Abstract: The invention relates to an active filter device for a power supply comprising a source having a source of current iS and a voltage VE, a power converter presenting an input inductor L, a power switch T controlled by a chopper signal and delivering an output voltage VS, and a load, the device being characterized in that it includes an active filter converter (10) for generating at its output a compensation current minus harmonics of the source current due to the chopping, in response to an input signal representative of the chopping of the power converter.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: June 3, 2014
    Assignees: Centre National de la Recherche Scientifque, Institut National Polytechnique de Lorraine, Universite Henri Poincare
    Inventors: Jean-Philippe Martin, Serge Lionel Pierfederici, Bernard Davat, Farid Meibody-Tabar
  • Electric actuator including two current-controlled voltage inverters powering an electrical machine, and reconfigurable in the presence of a defect
    Patent number: 8604733
    Abstract: The invention relates to an actuator including an electrical machine. The electrical actuator (100) comprising: a polyphase machine (101); at least one connection member (143) for powering the actuator from at least one network (146) delivering alternating current; and first and second buses (106, 107) connected in parallel between each connection member (143) and the machine (101) for applying frequency control thereto. Each inverter (111, 131) comprises a plurality of arms each having two controlled switches, each phase of the machine (101) being connected both to the two switches of an arm of the first inverter (111) and also to the two switches of an arm of the second inverter (131). The actuator further comprises controlled connection and disconnection means interposed between each bus (106, 107) and each connection member. The invention is applicable to actuators used in aviation.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: December 10, 2013
    Assignees: Messier-Bugatti-Dowty, Universite de Lorraine, Centre National de la Recherche Scientifique
    Inventors: Pierre-Yves Liegeois, François-Noël Leynaert, Farid Meibody-Tabar, Serge Lionel Pierfederici, Babak Nahid Mobarakeh
  • ELECTRIC ACTUATOR INCLUDING TWO CURRENT-CONTROLLED VOLTAGE INVERTERS POWERING AN ELECTRIC MACHINE, AND RECONFIGURABLE IN THE PRESENCE OF A DEFECT
    Publication number: 20110181219
    Abstract: The invention relates to an actuator including an electrical machine. The electrical actuator (100) comprising: a polyphase machine (101); at least one connection member (143) for powering the actuator from at least one network (146) delivering alternating current; and first and second buses (106, 107) connected in parallel between each connection member (143) and the machine (101) for applying frequency control thereto. Each inverter (111, 131) comprises a plurality of arms each having two controlled switches, each phase of the machine (101) being connected both to the two switches of an arm of the first inverter (111) and also to the two switches of an arm of the second inverter (131). The actuator further comprises controlled connection and disconnection means interposed between each bus (106, 107) and each connection member. The invention is applicable to actuators used in aviation.
    Type: Application
    Filed: September 23, 2009
    Publication date: July 28, 2011
    Applicants: MESSIER-BUGATTI, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE LORRAINE - INPL
    Inventors: Pierre-Yves Liegeois, François-Noël Leynaert, Farid Meibody-Tabar, Serge Lionel Pierfederici, Babak Nahid Mobarakeh
  • ACTIVE FILTERING DEVICE FOR A POWER SUPPLY
    Publication number: 20100148743
    Abstract: The invention relates to an active filter device for a power supply comprising a source having a source of current iS and a voltage VE, a power converter presenting an input inductor L, a power switch T controlled by a chopper signal and delivering an output voltage VS, and a load, the device being characterized in that it includes an active filter converter (10) for generating at its output a compensation current minus harmonics of the source current due to the chopping, in response to an input signal representative of the chopping of the power converter.
    Type: Application
    Filed: March 7, 2008
    Publication date: June 17, 2010
    Inventors: Jean-Philippe Martin, Serge Lionel Pierfederici, Bernard Davat, Farid Meibody-Tabar